I had a best friend but right now after getting into a relationship she just stopped talking to me in a close way. I don't know why but I had suffered a lot of loneliness when she suddenly got busy with her boyfriend. I had always talked about this to her openly but she was something like jealous of me in many things. But still I tried to keep our friendship. I found time for her everytime she needed me. But suddenly she became distant and never been there for me when I needed her. I felt so distant and decided to end this friendship. But my heart doesn't allow me so i again tried to keep it . But right now she says she doesn't feel close to me. We used to be very open-minded with each other but now she is pointing the same mistakes at me that I once accused her of. I don't know why this is happening. I feel that she had just used me . I don't know what to do . We became that close during the pandemic but when the classes got restarted, she wasn't like the one I used to talk to.